Welcome Visitor! Please take a few seconds and Rearanger
Active Member
- Joined
- Feb 4, 2008
- Messages
- 1,429
- Reaction score
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- Points
- 38
- Location
- Southeast USA
- Vehicle Year
- 2003
- Make / Model
- Ford
- Transmission
- Manual
I've wondered why the fuel filter has three ports and how they worked. So I cut my old one open to get a look inside - but I still don't know completely how it works - maybe someone can help.
See the pictures:
This is how it looks from the outside
This is it pulled apart
Here's how the ports align
The two center ports connect directly. The fuel inlet port (larger on left outside edge) connects to the center outlet port (on right) through the filter media then out to the fuel rail - I'm assuming.
So what is the left center inlet port for? It looks like a return line to tank.
See the pictures:
This is how it looks from the outside
This is it pulled apart
Here's how the ports align
The two center ports connect directly. The fuel inlet port (larger on left outside edge) connects to the center outlet port (on right) through the filter media then out to the fuel rail - I'm assuming.
So what is the left center inlet port for? It looks like a return line to tank.
